]. The stems scramble over the ground, climbing into the surrounding vegetation and supporting themselves by means of tendrils.
The plant is harvested from the wild, mainly for local use as a medicine, food and source of various commodities. It is sold as a vegetable in local markets in Sri Lanka[

Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).

].
The plant has spread through much of the tropics and subtropics, and is considered to be a noxious weed in some areas. The plant is a major problem in soya bean cropping in the United States. The size and shape of the seeds is very similar to those of soya bean seeds, which makes mechanical separation of the two very difficult[